News of Note—AT&T's Pacewicz joins MEF board of directors, AWS still top public cloud provider, Zscaler expands its SD-WAN ecosystem

Here are the other stories we're following today:

> MEF announced today that AT&T Chief Product Officer Roman Pacewicz has joined its board of directors. Press release

> According to Synergy Research, Amazon Web Services was still the top public cloud provider in the first quarter of this year. SDxCentral article

> Zscaler announced today that it has expanded its SD-WAN partner ecosystem with the addition of HPE's Aruba, CloudGenix, LANCOM Systems and 128 Technology. Press release